Предмет: Математика, автор: BouhjrMans228

РЕБЯТА!!!!ПОМОГИТЕ!!!!!!!!!!!!!!!

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Автор ответа: anastasyacwetkova

1 клетка = 1см
Р=4+3+1+2+1+2+2+3=18см - периметр фигуры
S=1х1=1см2 - площадь 1 клетки
Sфигуры=1х10=10см2 - площадь фигуры
новая фигура:
прямоугольник со сторонами 4см и 5 см
Р=2х(4+5)=18 см
S=4х5=20 см2 -площадь

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